Synthesizing method of broadband-excited white-light LED (Light Emitting Diode) fluorescent powder

Synthesizing method of broadband-excited white-light LED (Light Emitting Diode) fluorescent powder

The invention relates to a synthesizing method of broadband-excited white-light LED (Light Emitting Diode) fluorescent powder. The synthesizing method comprises the following steps of: preparing solutions through raw materials, namely, Sr(NO3)2, (NH4)6Mo7O24.4H2O and Eu2O3; adding nitric acid to the...

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1. Verfasser: WEI SHENGGUO
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ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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creator WEI SHENGGUO
description The invention relates to a synthesizing method of broadband-excited white-light LED (Light Emitting Diode) fluorescent powder. The synthesizing method comprises the following steps of: preparing solutions through raw materials, namely, Sr(NO3)2, (NH4)6Mo7O24.4H2O and Eu2O3; adding nitric acid to the Eu2O3 solution until Eu2O3 is reacted completely to obtain Eu; dropping Eu to the Sr(NO3)2 solution; adding nitric acid to adjust the pH of the solution to be 2 to 5; dropping the (NH4)6Mo7O24.4H2O solution into the Sr(NO3)2 solution; uniformly agitating; feeding a sampled solution into a reaction kettle; transferring the reaction kettle into an oven to react; washing the reaction product with ethyl alcohol and deionized water; drying through the oven; transferring the dried sample into a muffle furnace; annealing to obtain the target product, namely, white-light LED fluorescent powder SrMoO4:Eu3. The fluorescent powder prepared by the synthesizing method is relatively high in broadband excitation perfo
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The synthesizing method comprises the following steps of: preparing solutions through raw materials, namely, Sr(NO3)2, (NH4)6Mo7O24.4H2O and Eu2O3; adding nitric acid to the Eu2O3 solution until Eu2O3 is reacted completely to obtain Eu&lt;3+&gt;; dropping Eu&lt;3+&gt; to the Sr(NO3)2 solution; adding nitric acid to adjust the pH of the solution to be 2 to 5; dropping the (NH4)6Mo7O24.4H2O solution into the Sr(NO3)2 solution; uniformly agitating; feeding a sampled solution into a reaction kettle; transferring the reaction kettle into an oven to react; washing the reaction product with ethyl alcohol and deionized water; drying through the oven; transferring the dried sample into a muffle furnace; annealing to obtain the target product, namely, white-light LED fluorescent powder SrMoO4:Eu3&lt;+&gt;. 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The synthesizing method comprises the following steps of: preparing solutions through raw materials, namely, Sr(NO3)2, (NH4)6Mo7O24.4H2O and Eu2O3; adding nitric acid to the Eu2O3 solution until Eu2O3 is reacted completely to obtain Eu&lt;3+&gt;; dropping Eu&lt;3+&gt; to the Sr(NO3)2 solution; adding nitric acid to adjust the pH of the solution to be 2 to 5; dropping the (NH4)6Mo7O24.4H2O solution into the Sr(NO3)2 solution; uniformly agitating; feeding a sampled solution into a reaction kettle; transferring the reaction kettle into an oven to react; washing the reaction product with ethyl alcohol and deionized water; drying through the oven; transferring the dried sample into a muffle furnace; annealing to obtain the target product, namely, white-light LED fluorescent powder SrMoO4:Eu3&lt;+&gt;. 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The synthesizing method comprises the following steps of: preparing solutions through raw materials, namely, Sr(NO3)2, (NH4)6Mo7O24.4H2O and Eu2O3; adding nitric acid to the Eu2O3 solution until Eu2O3 is reacted completely to obtain Eu&lt;3+&gt;; dropping Eu&lt;3+&gt; to the Sr(NO3)2 solution; adding nitric acid to adjust the pH of the solution to be 2 to 5; dropping the (NH4)6Mo7O24.4H2O solution into the Sr(NO3)2 solution; uniformly agitating; feeding a sampled solution into a reaction kettle; transferring the reaction kettle into an oven to react; washing the reaction product with ethyl alcohol and deionized water; drying through the oven; transferring the dried sample into a muffle furnace; annealing to obtain the target product, namely, white-light LED fluorescent powder SrMoO4:Eu3&lt;+&gt;. The fluorescent powder prepared by the synthesizing method is relatively high in broadband excitation perfo</abstract><oa>free_for_read</oa></addata></record>
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subjects ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
title Synthesizing method of broadband-excited white-light LED (Light Emitting Diode) fluorescent powder
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